About the stone: Black obsidian is a natural glass, composed of two-thirds silica or more, formed during the cooling of volcanic lava
Astrological sign(s): Libra, Scorpio
Spiritual uses: Black obsidian draws you inward to the center of yourself, to the place of truth. In Native American teachings, it is likened to the Great Void.
Mental uses: Black obsidian is perfect to ground you and keep you focused.
Emotional uses: Black obsidian helps you dredge up emotions that are buried deep within yourself.
Physical uses: Black obsidian helps you avoid ingesting toxins by keeping you focused on healthy eating.